Stone-breaker



(No Model.) 2 Sheets-Sheet 1.

R. MGCULLY.

STONE BREAKER.

No. 557,216. i Patented Mar. 31, 1896.

ATTORNEY I fng- UWE/WOR WTNESSES.' 7% /Ww/C No Model.) l

R. MGCULLY. STONE BREAKBR.

Ptented Mar. 31, 1896.

2 Sheets-'Sheet 2.

ATTORNEY ANDREW RCRANMI4 PHOTO-LFI'IIQAWASHINGTOMDC,

UNITED STATES PATENT OFFICE.

ROBERT MCCULLY, OF PHILADELPHIA, PENNSYLVANIA.

STONE-BREAKER.

SPECIFICATION forming part of Letters Patent No. 557,216, dated March31, 1896.

Application filed September 17,1886. Serial No. 213,796. (No model.)

To @ZZ whom t may concern,.-

Beit known that I, ROBERT McCULLY, a

citizen of the United States, residing at Philadelphia, in the county 0fPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Stone- Breakers, of which the following is aspecification, reference being had therein to the accompanying drawings,wherein Figure l is a vertical section of a stonebreaking andore-crushing machine embodying my improvements; and Fig. 2 is a likeview of the upper part of the machine drawn to an enlarged scale,illustrating modifications of construction of detail parts.

My invention has relation to stone or other crushing machines, havingparticular reference to that form of the same shown and described inLetters Patent of the United States, granted to me September 7, 1886,No.3et8,757 and it has for its object the construction of parts toeconomize in the cost of manufacture, to increase the durability andefficiency of the machine, and to diminish the friction between itsworking parts and thereby correspondingly lessen the power required foroperating the machine.

My invention accordingly consists of the combination, construction andarrangement of parts,as hereinafter described and claimed..

In the drawings, A represents the frame or casing of the machine,comprising the bottom plate B, chute or outlet-chamber O,crushingchamber D, and top plate E, preferably iianged and boltedtogether, as shown. F indicates the gyratory shaft, and G thecrusherhead mounted thereon within the crushingchamber D.

The topplate E has a central hub-opening e, having vertical grooves e',in which are inserted bolts e2, upon the heads e? of which rests a solidor continuous steel or other suitable sleeve e4, having at its loweredge an inwardly-projecting flange e5. Upon the top of the latter ispreferably placed a steel washer e6, and upon it rests a steel bushingc7, the bore of which preferably decreases or tapers downwardly, asshown, and in this bore is inserted the cylindrical head f of thegyratory shaft F, the lower edge or shoulder f of said head f resting orimpinging upon the washer e6. The taper of the bore of bushing e7provides suitable space to admit of the usual inclination of thegyratory shaft F and to provide contact on only one side of the head fwith the bushing e7 as the shaft gyrates. The head f, therefore, has arolling movement within the bushing e7, and all grinding or rubbingfriction between said parts is avoided, and all wedging or tightening ofthe head in its bearing is prevented, no matter what weight or pressureit is subjected to.

The opening e is closed by a cap or cover es, through which pass thebolts e2, which have at their upper ends suitable adj Listing-nuts e9,which also serve to fasten the cap or cover e8 to the plate E. p

To keep the shaft F from raising during crushing, a set-screw 610,passing through cover es and abutting against the top of theshaft-headf,may be employed. l prefer,how ever, to insert between thescrew ew and shafthead f a loosely-supported knuckle or toggle @11,having ball-and-socket bearings @12 with said screw and shaft-head, asshown, to avoid a grinding friction between said parts during thegyration or movement of the shaft-head f.

The h'ead f may be formed separate from the shaft F and screwed thereto,as indicated in Fig. l, or placed loosely thereon and held firmly inplace by a set-nut f2, as shown in Fig. 2, or it may be otherwiseformed, as desi red.

The shaft and crusher-head it will be noted are supported upon washer e,which in turn is maintained in position by sleeve e4 and bolts e2, sothat the latter support both the Crusher-head shaft and its top bearing,and by adjusting nuts c" on said bolts the said parts are raised andlowered, as desired, to effect any variation in the degree of crushing,or for other purposes, as fully set forth in my aforesaid patent.

The crushing-chamber D has preferably two sets of working faces CZ andCZ', the set d of which is preferably made in sections having on theirrear sides lugs d2, which tinto recesses d3 in the inner wall of chamberD. The

set CZ is in one piece and rests upon the top of the chute-chamber C.These faces CZ and (Z are firmly held in position by the rim E of plateE, overlapping the top edge of faces (Z. The faces (Z and d' arereversely tapered, or have different directions, as shown, while theCrusher-head G has the same, or one taper from top to bottom. Therelative taper of the crusher-head and faces CZ and CZ/ is such that thematerial is crushed or broken coarsely or partially reduced between thefaces CZ and the adjacent part of the Crusher-head and finely reduced orpulverized between the faces dV and the part of the crusher-headadjacent thereto.

The Crusher-head working faces may be in two pieces g g', as shown, andthey are secured to a sleeve g2, which in turn is cast or otherwisefastened to the shaft F in a manner set forth in pending applications ofeven date herewith, or in any other desired way.

At the top of the Crusher-head at its outer edge is formed a flange c3,which preferably has a biting or sharp edge g4, which bites the materialin the crushingchamber as it is broken or crushed and prevents it flyingor jumping out of said chamber.

The bottom plate B has a depending central opening or bearing b, havinga removable bottom b. Upon the top of this bearing rests a steel washerh, which supports and upon which revolves the driving-gear Il, having inits bore a sleeve h', provided with an eccentric or cam bore h2 for thereception of the lower end f3 of shaft F.

If desired, the top of the wheel H :may be covered by a plate orprotector h3 to keep dirt and dust from said wheel, sleeve, andshaftbearings, or any other form of protector may be used.

In the top of bearing Z2 is a transverse groove or duct b2, whichcommunicates with an annular recess b3, formed around the inner edge ofsaid top, and in line therewith in sleeve h is a transverse opening 71,4for oiling purposes, and, if desired, vertical grooves maybe cut on theinside and outside of sleeve h', as indicated by dotted lines 715, Fig.l, for a like purpose.

Around the upper part of bearing b and in plate B is formed anoiling-gutter and sediment-chamber b4, which are provided with adrip-cock b5, if desired, and this gutter eX- tends upwardly above thetop of plate B and is bridged by radial bars b to maintain the fullstrength of said plate B, as fully described and shown in two otherpending applications of even date herewith, Serial Nos. 213,795 and213,797, respectively.

Gutter h4 is provided with an oil-supply pipe L, the filling end Z ofwhich is about on a line with the top of the gutter, so that the oilwill rise in filling end Z and in the gutter simultaneously to providefor ascertaining when the bearing is filled with oil and to preventoverflow therefrom. An y such overflow however, from gutter Z9* to plateB is retained in the machine by the annular flange 197, formed on theupper side of plate B, outside of the driving-gear II. Any waste oilaccumulating on plate B is drained off through cock w. The oil flowinginto gutter b4 passes through duct or ducts h2, recess b3, and openingsh" to bearing Z) until it and the gutter are filled, and all the bearingparts of the lower end of the shaft and its driving-gear are thusthoroughly oiled.

The one or more chutes c for chamber C are constructed and arranged asdesired; but I prefer to make them as set forth in my aforesaid LettersPatent.

In Fig. 2 the working faces eZ of crushingchamber D are made straightvertically, and the faces CZ only are tapering, the result in this casebeing the same as that above described for the reversely-tapered facesCZ and CZ'.

I prefer to make the faces d straight or directly vertical, as shown inFig. 2, and give to the faces CZ a taper corresponding to that of theCrusher-head, as the latter having the same or but one taper from top tobottom prevents lodging of the ore or material at any point on itsworking face.

What I claim is- 1. In a stone-breaker, the combination of a housing orframe top plate having a central hub-opening, a gyratory shaft having anenlarged cylindrical upper end, a sleeve or bearing in said hub-opening,said sleeve having at its lower edge an inwardly-projecting flangeforming a support for the lower end or edge of said cylindrical en d ofthe shaft and adjusting mechanism for raising and lowering said sleeveand shaft, substantially as set forth.

2. In a stone-breaker, the gyrating shaft F having head f, bushing e7,sleeve e4 having flange e5, top plate E having opening e and bolts e2having adjusting-nuts e, substantially as set forth.

3. In a stone-breaker, the combination of a gyratory shaft supported atthe top of the machine, and having an enlarged upper head f, a top plateprovided with a central hubopening, a bearing composed of a sleevesupporting a washer, and a bushing resting on said washer, substantiallyas set forth.

4. In a stone-breaker, the combination with frame A and top plate Ehaving opening e, of gyratory shaft F having head f, bushing e7 washere, sleeve e4 having flange or shoulder e5 and bolts e2, substantially asshown and described.

5. In a stone-breaker the combination of a crushing-chamber havingseparate working faces d CZ',the gyratory shaft F having crusherhead Gprovided with a single taper from top to bottom and a top-edge flangeg3, and driving mechanism located below the crushingchambersubstantially as set forth.

G. In a stone-breaker the combination of a ICO IIO

IIS

Vertical gyratory shaft, a Crusher-head G having a top-edge flange g3,and a crushing-chamber D, substantially as and for the purpose setforth.

7. In a stone-breaker, the Combination with the gyrating shaft F and itstop bearing, of supporting and. adjusting devices for said bearing andshaft, set-screw, and knuckle or toggle e having ball-and-soeketbearings on, said sereW and shaft,substantia11y as set forth. I o

In testimony whereof I affix my signature in presence of two Witnesses.

ROBERT MCCULLY. Witnesses:

S. J'. VAN STAVOREN, CHAS. F. VAN HORN.

